A Scaling Limit With Many Noncommutativity Parameters
High Energy Physics - Theory
2010-11-15 v1
Abstract
We derive the worldsheet propagator for an open string with different magnetic fields at the two ends, and use it to compute two distinct noncommutativity parameters, one at each end of the string. The usual scaling limit that leads to noncommutative Yang-Mills can be generalized to a scaling limit in which both noncommutativity parameters enter. This corresponds to expanding a theory with U(N) Chan-Paton factors around a background U(1)^N gauge field with different magnetic fields in each U(1).
Cite
@article{arxiv.hep-th/0009225,
title = {A Scaling Limit With Many Noncommutativity Parameters},
author = {Louise Dolan and Chiara R. Nappi},
journal= {arXiv preprint arXiv:hep-th/0009225},
year = {2010}
}
Comments
14 pages, harvmac